Colorado-based data company Gnip is managing a transfer of tweets to the Library of Congress archive, but as of yet, the library doesn't have the tools to turn those tweets into meaningful data.
WASHINGTON — In the few minutes it will take you to read this story, some 3 million new tweets will have flitted across the publishing platform Twitter and ricocheted across the Internet.
The Library of Congress is archiving the sprawling Twitter canon — with some key exceptions — dating back to the site’s 2006 launch. That means saving for posterity more than 170 billion tweets and counting, with an average of more than 400 million new tweets sent each day, according to Twitter.
But in the two years since the library announced its project, few details have emerged about how its unwieldy corpus of 140-character bursts will be made available to the public.
That’s because the library hasn’t figured it out.
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“People expect fully indexed — if not online-searchable — databases, and that’s very difficult to apply to massive digital databases in real time,” said Deputy Librarian of Congress Robert Dizard Jr. “The technology for archival access has to catch up with the technology that has allowed for content creation and distribution on a massive scale.”
Colorado-based data company Gnip is managing the transfer of tweets to the archive, which is populated by a fully automated system that processes tweets from across the globe. Each archived tweet comes with more than 50 fields of metadata — where the tweet originated, how many times it was retweeted, who follows the account that posted the tweet and so on — although content from links, photos and videos attached to tweets are not included.
For security’s sake, there are two copies of the complete collection.
But the library hasn’t started sorting or filtering its 133 terabytes of Twitter data, which it receives from Gnip in chronological bundles, in any meaningful way.
“It’s pretty raw,” Dizard said. “You often hear a reference to Twitter as a fire hose, that constant stream of tweets going around the world. What we have here is a large and growing lake. What we need is the technology that allows us to both understand and make useful that lake of information.”
For now, giving researchers access to the archive remains cost-prohibitive for the cash-strapped library, which has spent tens of thousands of dollars on the project, Dizard said. Without a major overhaul to its computing infrastructure, it isn’t equipped to handle even the simplest queries.
“We know from the testing we’ve done with even small parts of the data that we are not going to be able to, on our own, provide really useful access at a cost that is reasonable for us,” Dizard said. “For even just the 2006 to 2010 (portion of the) archive, which is about 21 billion tweets, just to do one search could take 24 hours using our existing servers.”
Instead, the library is exploring whether it might be able to pay a third party to provide public access to the archive.
For those who have immediate research interests — and many people have contacted the library, Dizard says — the wait is maddening.
The eventual plan is to make the collection available only within the Library of Congress reading rooms. Requiring an in-person visit to search a database of material that originated online may seem incongruous, but Dizard says it’s a condition of the deal with Twitter, which donated the archive, so that the library won’t be “competing with the commercial sector.”
There are other limitations. The library is not archiving tweets from those who opt for the strictest privacy settings, which allow Twitter users to approve or reject each potential follower.
The library is also planning to scrub deleted tweets. Dizard, citing privacy concerns, calls that decision “one of the more significant policy questions we face.”